Pattern mechanism.



E. F. HATHAWAY.

PATTERN MECHANISM.

APPLICATION FILED MAR. 31, 1906.

1,186,513. Patented June 6, 1916.

1m: COLUMBIA PLANOGRAPH co, WASHINGTON. n. c.

UNITED STATES PATENT OFFICE. I

EDGAR F. HATI-IAWAY, OF BOSTON, MASSACHUSETTS, ASSIGNOR TO AMERICAN WARP I DRAWING MACHINE COMPANY, OF BOSTON, MASSACHUSETTS, A CORPORATION OF MAINE.

PATTERN MECHANISM.

Application filed March 31, 1906.

To all 'whomz't may concern:

Be it known that I, EDGAR F. HATHAWAY, a citizen of the United States, and a resident of Boston, in the county of Suffolk and State of Massachusetts, have invented an Improvement in Pattern Mechanism, of which the following description, in connection with the accompanying drawings, is a specification, like letters on the drawings representing like parts.

My invention relates to pattern mechanism, and more particularly to pattern mechanism intended for the control of different parts of a machine, which parts for the performance oftheir successive operations are put into motion intermittently and continued for definite intervals dur-. ing each cycle of operation of the machine.

It frequently happens that a complete cycle of operations is performed with reference to certain mechanism or parts before the performance of a complete cycle with reference to other parts. It has been the usual practice, however, to provide a single pattern or unitary pattern-carrying element for the pattern-controlled operation of the several parts, the active length of such pattern element being usually made a multiple of the longer and shorter pattern length. Taking for example, a warp-drawing machine, with reference to which this invention is herein illustrated, a single pattern mechanism has heretofore been employed for intermittently selecting and feeding the warp threads, the reed dents and the harness eyes to bring the same respectively in cooperative alinement with the drawing needle. NVhere several harnesses are employed and it is desired to drop certain of the eyes from time to time, this requires an intermittent control of the reed and warp separator, which is unlike and may be of quite different patternlength or duration from the intermittent control of the harness. This may sometimes require a pattern length for the thread and reed separators so greatly in excess ofthe pattern length required for the harnesses that if united in a single pattern-carrying device, the total active pattern length required may exceed the limit imposed by practical considerations. a

One object of my invention is to so separate the pattern elementsfor the different mechanisms that the pattern arrangement Specification of Letters Patent.

Patented June 6, 1916.

Serial No. 309,126.

for the patterns requiring but a short terval need not be necessarily repeated and multlplied into an excessive pattern length through the mere presence of other patterns requirlng a longer interval for completion.

Another object of my invention is to improve and simplify-the construction of pattern mechanisms, and particularly, though not exclusively, pattern mechanisms for machines dealing with warp threads or the like, such as warp-drawing machines.

My invention will be best understood by reference to the following description, when taken in connection with the accompanying illustration of one specific embodiment thereof, whileits scope will be more particularly pointed out in the appended claims. A M

In the drawings, Figure l is a plan view showing a pattern mechanism constructed in accordance with one form of my invention and applied to the end of a well-known type of warp-drawing machine; Fig. 2 is a side elevation of thepattern mechanism shown in Fig. 1, and Fig.v 3 is a longitudinal sec tion taken through the clutch mechanism showing the internal construction thereof.

While for the broad purposes. of my in vention the particular machine or mechanism designed to be controlled is immaterial, I have here shown my. invention as applied to a warp-drawing machine. of the general type shown in Patent No. 755,861 to M.'F.-

Field, and'also in the Patent No. 980,086, r

suitable reed-opening device which, through a full revolution of the said shaft, adjusts. and opens the reed dents. The remaining and intervening rods (L -a inclusive,pass to the respective separating devices for the several harnesses, which in the machine illustrated are supposed to be six'in number. For each semi-revolution of the harness.

separator shaft an eye of its respective harness is presented within the path of the drawing needle. Another semi-revolution places the harness eye out of the path of the drawing needle. A machine of this type is shown in British Patent 4661 of 19%.

The ends of the several shafts are removably but fixedly held in sleeve sockets 6-3), which latter are journaled in the upright frame member B. The sleeve socket members are secured each to short operating rods or shafts 00, which extend oppositely from the several feeding rods aa. and are rotatably mounted each in its respective sleeve or bushing (Z-(P (Fig. 3). The sleeves rl(l are fixedly sustained in a second upright frame member C, adjacentand parallel to the frame member- B. The end of the shaft 0 is drilled to receive the extended slidable plunger-rod e, which carries at its inner end the clutch pin 7', movable lengthwise the shaft 0 in a slot therein from a position shown in Fig. 3, where it lies in a notch g in the stationary sleeve (Z, to a position (not shown) within a notch it, the latter formed in the hub of the gear 2', which gear is loosely mounted upon the shaft 6 but held against lateral displacement by the fixed collar j. From this it follows that, with the plunger-rod in the position shown in Fig. 3, the operating shaft 0 and the feeding rod a remain stationary. Vith the plunger-rod movedto seat the pin in the notch h, the shaft 0 is thereby clutched to the gear iv to "be turned thereby. This construction, save for the proportions of the gears, is substantially the same with reference to each of the operating shafts a-aF, referred to.

The several operating gears 71 are driven through the following mechanism: Extending lengthwise the machine is the main driving'shaft Z, connected through suitable gearing to drive the transverse incline-d shaft Z, the latter in turn driving the short longitudinal shaft Z Mounted upon the shaft Z is a disk Z which carries the pin Z engaging, with the over-head star-wheel Z so that for each revolution of the shaft Z the starwheel is turned a fraction of a revolution, herein one-sixth. The star-wheel Z is secured to a second shaft Z, carrying also the large gear Z which meshes with the smaller, over-head gear 2' operatively related, as above described, to the operating shaft 0 and also with the still smaller gear 2', connected to turn the shaft 0.

The proportions of the driving gears are such that,'a-t each reciprocation of the drawing needle, the gear 2' is caused to turn through a complete revolution and the gear 2' through a semi-revolution. The gear 2' meshes with its companion gear 6 and the latter with the gear i", and so on, whereby the several gears 2 -11 are given each a semirevolution, the direction of one gear, how

ever, being obviously reverse to that of the next adjacent one. Secured to the gear 2' is a larger gear i which meshes with the smaller gear 2", so that the latter is turned a full revolution for each reciprocation of the drawing needle; this rotation, as well as that of the remaining gears, taking place intermittently, as it will be observed, through the action of the star-wheel.

The exterior ends of the several plungerrods c@ are engaged through the medium of the adjusting nuts m by the yoked ends of upright levers n. The latter are pivoted at their lower ends to the frame and are provided with springs 0 which tend to throw the levers backward and retract the plungerrods. It will be obvious that when a lever is moved forwardly against its spring, it causes the advance of its plunger-rod within its corresponding shaft and couples the shaft to the driving gear, this acting to give the operating shaft its half turn or full turn, as the case may be, as the star-wheel is moved.

Operatively related to the levers there are provided, as in the aforesaid Patent No.- 980,086, pattern devices for controlling the action of the clutches. In the present instance the pattern-carrying elements for the harness separator shafts comprise a pair of patterncarrying chains 7), sustaining a series of pattern bars 79. The chains are mounted upon suitably supported sprockets so as to travel with rotation. of the latter and be brought one by one in proximity to the levers a. Each pattern bar has six holes which aline with six of the levers, and in each of these holes may be placed a peg or pin 7), which on traverse of the chain is caused to engage with the corresponding lever and move it forwardly as described. The bars being pegged according to a predetermined arrangement, the levers will be moved in accordance with that arrangement, the absence of a peg in. the adjacent pattern bar merely leaving the lever inactive. 7

One pair of supporting sprockets is mounted upon the driving shaft r, the other upon the counter-shaft r. The former is carried by the brackets r secured to the upright frame member C, and the latter is journaled in brackets 9, which are secured by overhanging frame extension members r to the brackets 1. The driving shaft r is given suitable movement to bring successive pattern bars in cooperative alinement with i the operating levers by means of the driven gear 8, which meshes with the larger driving gear 3. The gear 8' meshes with the under lying driving pinion s on the transverse shaft 8 which near its oppositeend carries the bevel gear 8, meshing with the bevel gear 8 The latter is driven by a gear 8 which meshes with the smaller over-head gear 8 secured to the shaft Z and driven thereby. The moyement of the sprocket driving shaft 9' is such as to cause engagement between the projecting peg of a pattern bar and its corresponding lever at suitable time and for a sufficient duration to clutch the corresponding driving gear 2' to its operating shaft at the time the formeris moved by the star-wheel.

In the present machine I have provided a separate pattern chain 25 for the thread separator shaft a and a pattern chain it for the reed-separating shaft a. These passvover individual and separate sprockets on the sprocket driving shaft 7' and the countershaft 1", respectively, and are operated and moved in the same fashion as described. These chains (as best seen in Fig. 2) are made up of blank links it and pattern or cam links 14 the presence of the latter effecting the actuation of the corresponding lever. These are separable and removable so that they may be arranged in any desired relation or combination with reference to each other, but it will be obvious that the presence of a pattern link or a blank link adjacent the operating lever results respectively in the actuation or the inaction of the lever at that time.

The pattern chains for the thread separator and reed opener may be of the same length as the pattern-carrying chains 39-, but being separate and independent of the latter, they may be lengthened to any desired extent. It is frequently desirable to utilize this feature, as for example, where it becomes necessary to drop a number of eyes at different periods in the drawing action. This is readily accomplished by interposing in the pattern chains for the reed and warp suitable combinations of blank and cam links. lengthening of the pattern chains 25 and u may be achieved, as indicated in dotted lines (Figs. 1 and 2) to any desired extent without reference to the length of the pattern carrying chains 72.

If the elongated pattern chains 1/, and t are of such length as to require support in addition to the sprocket shafts 1", 1", additional means for this purpose may readily be provided. In the drawings I have shown one of the frame members 1 extended to provide an overhanging support 1 for the auxiliary sprocket 7*, over which the elongated pattern chain a is suspended. The frame extension 1' receives support from a suitable inclined bracing rod 1' extending outwardly from the frame of the machine and best shown in Fig. 2. The countershaft 1" is also extended and has attached thereto the auxiliary sprocket 1' over which is suspended a loop of the elongated pattern chain t. The auxiliary sprocket r is driven by the counter-shaft 1" and the sprocket r is Y driven throughits attachment to a sleeve 7,

the latter having secured thereto the bevel In the present instance the requisitegear 1* meshing with the gear r, the latter on the counter-shaft 7". Since the auxiliary sprockets are positively driven at the same rate of speed as the sprocket driving shaft, the loops of the several chains are taken in and paid out uniformly without danger of conflict or entanglement. If it is desired to further lengthen the pattern chains 25 and u, additional loops may be formed therein supported by and traversed on additional sprocket members, which, as will be obvious, may be added to the machine and driven in the same fashion as illustrated from the outboard or countershaft sprocket. L

While I have shown invention in de tail for the purposes of illustrating the one specific embodiment shown, it is to be understood that the invention is not limited to the details herein shown and described, or to the form or relative arrangement of parts, but that extensive modifications therein may be made without departing from the sprocket for the same, one or more additional pattern-carrying chains of greater lengthalso driven by said shaft, said'chains of greater length being provided with one or more suitably supported auxiliary sprocket wheels about which the same are looped. i

In a warp-drawing machine having devices for intermlttently controlling and feeding the reed dents, the harness eyes and s the warp threads and successively locating one of each for the drawing-in operation, adjustable pattern mechanism for controlling the feeding of the harness eyes, and independent pattern mechanism for the warp threads and reed dents.

4:. A warp-drawing machine having devices for intermittently controlling and feeding the reed dents, harness eyes and the warp threads and successively locating one of each for the drawing-in operation, a pattern mechanism for controlling the said devices comprising a plurality of pattern-carrying chains, a sprocket shaft supporting and driving ortraversing said chains, a counter sprocket shaft about which said chains also pass, suitable supporting memhers secured to the frame ofthe machine for supporting said sprocket shafts, frame extension members secured to said supporting members and carrying one or more auxiliary sprocket wheels, said auxiliary sprocket wheels being adapted to support one or more loops of the elongated pattern chains, and means positively to drive said auxiliary sprocket wheels from the counter sprocket shaft.

5. In a machine having a plurality of operating parts to be intermittently actuated, the combination with actuating mechanism, of means for connecting the actuat ing mechanism with the respective parts, comprising one or more pattern-carrying chains, a sprocket wheel driving shaft and a sprocket wheel with which said chain engages and an auxiliary sprocket wheel and sprocket wheel shaft with which said chain engages, said auxiliary sprocket wheel being connected to turn synchronously with said first-named shaft.

6. In a machine having a plurality of operating parts tobe intermittently actuated, the combination with actuating mechanism, of means for connecting the actuating mechanism with the respective parts, comprising one or more patternrarrying chains having elongated portions, and a positively driven auxiliary sprocket wheel for sustaining the elongated portions of said chain.

7. A warp drawing machine having devices for intermittently controlling and feeding the harness eyes, a pattern mechanism'for controlling said devices comprising one or more pattern-carrying chains, a sprocket wheel shaft supporting and driving said chain, an auxiliary sprocket wheel about which said chain alsoipasses, and means for positively driving said auxiliary sprocket wheel.

8. A warp drawing machine having devices for intermittently positioning the harness eyes, reed dents and warp threads, a series of clutch members forintermittently controlling said positioning means, and a plurality of pattern-carrying members of different active length for controlling the clutch members.

9. A warp drawing machine having devices for intermittently positioning the barness eyes, reed dents and warp threads, an actuating mechanism, and means for con necting the actuating mechanism with'the respectivepositioning means in accordance with predetermined. adjustment, said means including a plurality of pattern-carrying members of different active pattern length.

10. In a machine having a plurality of operating parts to be intermittently actuated, the combination with a plurality of clutch members for intermittently controlling said respective parts, driving means adapted to be connected with said operating parts by said clutch members, extensible pattern devices for controlling the said clutches, main guidingmeans for said pattern device, and auxiliary guiding means for guiding the extended portions thereof.

In testimony whereof, I have signed my name to this specification, in the presence of two subscribing witnesses.

EDGAR F. HATHAlVAY.

Witnesses THOMAS B. BoorH, EDITH E. CHAPMAN.

Copies of this patent may be obtained for five cents each, by addressing the "Commissioner of Eaten",

Washington, :D. 0." 

